Question 4) Test Yourself on CompTIA i-Net+.

Objective : Internet Security SubObjective: Understand and be able to Describe the Various Internet Security Concepts Single Answer Multiple Choice

E-mail messages can be easily forged on the Internet. What can you use to be certain that a sender is who he or she claims to be?

A. ACL B. SSL C. Firewall D. Certificate

Answer: D. Certificate

Tutorial: Certificates (digital signatures) are primarily used to verify the identity of a sender, but they can also be used to ensure that data, such as documents, arrives at the destination untampered with.

An Access Control List (ACL) is a series of conditions that determine if network traffic should be passed on or blocked. Firewalls and routers use ACLs to filter out unwanted traffic.

Secure Sockets Layer (SSL) is a protocol used for secure Internet transactions.

Firewalls filter unwanted traffic from private networks.

These questions are derived from the Self Test Software Practice Test for CompTIA Exam #IK0-002: i-Net+.